My advice would be to sit tight, wait and see what shakes out and how long "just around the corner" will be.
The development has been what I consider a slow process.

You are right about that Greg. Development and manufacturing moves quickly at times, and sometimes less so.The IICE Air is sort of a complex hardware puzzle. What I mean is the design is mechanically intricate, which made building 650 of them quite a project. The Calibration plug-in too is a bit of miniature clockwork. Also not the easiest to hand produce.

Following the Calibration plug-in we expect a very smooth path for the Digital devices. The new Digital devices are more basic mechanical designs say. With their sophistication provided by processors and code.